Abstract
We investigate the contribution of negative-energy states on the and polarizabilities for the and states of the Sr clock and find that they dominate the polarizability difference. Our calculated result is a.u., which resolves the sign inconsistency between theory and experiment. Additionally, we extend our method to other optical clocks, confirming the crucial role of negative-energy states in determining the polarizability.
- Received 16 June 2023
- Accepted 19 September 2023
DOI:https://doi.org/10.1103/PhysRevA.108.L051101
©2023 American Physical Society
Physics Subject Headings (PhySH)
synopsis
Solution for Atomic Clock Puzzle
Published 9 November 2023
The resolution of a major discrepancy between theory and experiment for strontium atomic clocks could help improve the precision of these timekeepers.
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